Launch M-Diag Lite Review (PCB attached)

I’ll chip in my few words of Launch M-Diag Lite.

It’s small and portable
Light and small OBDll device, easy to handle;
Plug and play through Bluetooth connection with smart phone

And with the widest carsoftware coverage
Support the generic OBD, CAN bus, and proprietary protocols of over70 car manufacturers and2, 500 car models;
Support multiple special function software and actuation tests.

Also, it’s economical but powerful
i spend €84.95 on it from

Options to purchase manufacturer specific carline software based on needs
Full-system diagnostics including bl-directional capabilities

M-Diag available on the Apple App Store & Google Play Store

I found twoboardsinside,tightly connected to each other by a pad of twenty jumpers.

launch-m-diag-lite-pcb-2 launch-m-diag-lite-pcb-1

One board with a multiplexer and a processor, and the other with a Bluetooth module and power system. And yes, there is a USB connector; it’s like oldLaunch EasyDiag.


There are the following markings on the Launch M-Diag Lite main (processor) board :

LAUNCH 10200716

DBSCAR_MAIN_STM32F207 – name of the board and the processor used

2015.05.29 – production date

V1.00.000 – version of the board

On the “communication” board there are the following markings:


V1.00.000 – version of the board

launch-m-diag-lite-pcb-5 launch-m-diag-lite-pcb-4

It’s kind of different from the version 2014.11.08 (production date)

The main board has:

Processor STM32F207IGH6

Multiplexer JV700

Also on the board contacts are similar to the connection of the service connector.

The communication board uses only two controllers in the Bluetooth module:



launch-m-diag-lite-pcb-7 launch-m-diag-lite-pcb-6